摘要
提出了一种利用机器视觉技术对五坐标机床旋转轴转角定位误差进行检测的方法。首先,通过制作特定的标志,用CCD相机获取标志图像;然后,通过数字图像处理技术对所获得的图像进行分析处理;最后,根据标志在不同位置处的相对转角偏差计算机床旋转轴的转角定位误差,实现五坐标机床旋转轴转角定位误差的辨识和测量。同时,将该方法与传统检测方法进行对比,实验结果表明,所提出的检测方法简单、高效,可以实现机床旋转轴误差的快速检测,并为五坐标机床旋转轴误差的补偿提供了计算依据。
A measurement method was proposed for rotation axes of five-axis machine tool based on machine vision.Firstly,the vision technology was adopted to obtain sign images by using CCD camera.Then,the digital image processing techniques were used to analyze these images.At last,the positioning errors of rotary axes were identified by calculating the relative rotary errors at different positions of rotation axes of machine tool.Comparing to traditional method,the experimental results showed that the proposed method with a simply,high efficiency and application value provided a computation basis for the error compensation of a machine tool.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2013年第8期293-298,共6页
Transactions of the Chinese Society for Agricultural Machinery
基金
'十二五'国家科技重大专项资助项目(2012ZX04011-031)
四川省科技支撑计划资助项目(2011GZ0065)
关键词
五坐标机床
旋转轴
误差检测
机器视觉
图像处理
Five-axis NC machine tool Rotary axis Errors measurement Machine vision Image processing
